Comparison

Walter Insert Converter vs Thread Calculator

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Walter Insert Converter

Easily find equivalent Walter inserts for your current machining tools. Optimize chip cutting, extend tool life, and enhance process safety and productivity.

Highlights
  • Find equivalent Walter inserts
  • Optimize chip cutting
  • Increase tool life
  • Enhance process safety
  • Supports ISO-Turning, parting-off, grooving
  • Covers advanced materials (CBN/PKD/Ceramics/Cermet)
Features
Read full description

You have got a cutting application and want to use Walter inserts for the machining? It's easy with the Walter Insert Converter. Simply type-in the insert you are currently working with - and the Insert Converter tells you, which Walter inserts is equal to your current solution. The ideal app to optimize your chip cutting process and tool life, to increase the process safety and your productivity. This app covers grades in the product area ISO-Turning, parting-off and grooving as well as ISO Advanced Materials (CBN/PKD/Ceramics/Cermet). The chip former covers the areas ISO-Turning as well as parting-off and grooving.

About

Thread Calculator

This app provides a quick and easy way to calculate thread dimensions for various units, including tap hole sizes and bolt specifications. It helps metalworkers find precise measurements for internal and external threads without consulting tables.

Highlights
  • Thread cutting calculator for multiple units
  • Cold forming calculator
  • Thread repair calculator
  • Tap hole and bolt diameter calculation
  • Saves time compared to tables
Features
Read full description

The app includes: - A calculator for thread cutting for the following units: M, MF, UNC, UNEF, UNF, UNR, UNS, NPT, NPTF, NPSC, NPSF, NPSL, NPSM, BA, BSP, BSF, BSW, BSPP, TR, and TRF - A calculator for cold forming - A calculator for thread repair You want to know which tap hole you should drill for threading or which bolt you should use? With this app, you will find the desired measures in no time: Simply select the desired thread type, nominal size, and pitch and you will get the matching diameter for your project. This saves precious time you would have spent tediously searching for internal and external thread dimensions in tables. As this app is still in its development phase, new features will follow soon, so stay tuned! GSR Gustav Stursberg GmbH is a manufacturer for high-quality thread cutting tools with 130 years of operational experience in the area of threading tool production. The product portfolio includes a wide selection of tools for different areas of application. GSR taps, twist drills, round dies, and tool holders are manufactured to the highest quality standards in our own production facilities. The constant quality control during the production process guarantees a consistent good quality in all national as well as international production facilities. This requires enormous precision, which is reflected by our tools. Precision is in the details. Since 1889.

Screenshots

Walter Insert Converter3 screens
Thread Calculator4 screens

Verdict

The call

The clearest difference is ads: Walter Insert Converter at none against Thread Calculator's shown. Walter Insert Converter also leads on monetization model (free vs ad-supported). Thread Calculator's advantage is review sentiment (33% vs 0%). On price, update cadence, in-app purchases and device support there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Walter Insert Converter ships an update every 23 months, Thread Calculator every 18 months. The most recent releases landed on September 20, 2026 and September 27, 2026 respectively.

Scorecard3 real differences · 7 level
Walter Insert Converter versus Thread Calculator: the parameters behind the verdict, then further details
ParameterWalter Insert ConverterThread Calculator
PriceFreeFree
Rating—4.3 (13 ratings) — better
Positive reviews0.0% of reviews33.3% of reviews — better
Number of ratings—13 — better
Update frequencyEvery 23 monthsEvery 18 months — better
AdsNo — betterYes
In-app purchasesNoNo
MonetizationFree — betterAd-supported
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS14.0 — better15.0
Further details — not scored
Size33 MB25 MB
Age rating4+4+
DeveloperWalter-AGGSR Gustav Stursberg GmbH

Customer experience

Walter Insert Converter

Written reviews1 reviews
Positive0.0%
Neutral0.0%
Negative100.0%

Thread Calculator

All ratings13 ratings
Positive84.6%
Neutral7.7%
Negative7.7%
Written reviews3 reviews
Positive33.3%
Neutral0.0%
Negative66.7%

In-app purchases

None

Walter Insert Converter

No in-app purchases

None

Thread Calculator

No in-app purchases

Questions

Is Walter Insert Converter free?
Walter Insert Converter is free to download, with no in-app purchases.
Is Thread Calculator free?
Thread Calculator is free to download, with no in-app purchases.
Do Walter Insert Converter or Thread Calculator have ads?
Thread Calculator shows ads; Walter Insert Converter does not.
Which is updated more often, Walter Insert Converter or Thread Calculator?
Walter Insert Converter ships an update every 23 months, and Thread Calculator every 18 months. Most recently, Walter Insert Converter was updated on September 20, 2026 and Thread Calculator on September 27, 2026.

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